Paragon app won't mount

I have a Galaxy Note 2014 edition. I rooted the device in order to use a NTFS partitioned external HD. I followed all the instructions, used the root checker and everything is fine. When I connect the external drive it is recognized by Paragon but when I click "mount" it just flashes back to the initial screen of the app. Does anybody have a clue of what is possibly going wrong? (I've tried other apps such as stickmount, ntfs mounter and none of them worked. Thanks.